let api = require('../../Datas/api.js');
var app = getApp();
Page({
  data: {
    winHeight: "",//窗口高度
    currentTab: 0, //预设当前项的值
    scrollLeft: 0, //tab标题的滚动条位置
    showView: false,
    list: {},
  },


getLists: function (cid, page = 1) {

  let param = {
    API_URL: app.globalData.apiUrl + 'videoData/getVideosByCid',
    data: {
      page: page,
      limit: 20,
      cid: cid
    }
  };

  api.result(param).then(data => {
    let datas = data.data.data;
    let isLast = 0;
    if (datas.length < param.data.limit) {
      isLast = 1
    }

    let list = { ...this.data.list };
    let item = list['data'] || [];

    item = item.concat(datas);
    list = { data: item, page: page, isLast: isLast };

    this.setData({
      list: list,
    });

  }).catch(e => {
    console.log(e)
    // this.setData({
    //   loadtxt: '数据加载异常',
    //   loading: false
    // })

  })

},



  // 滚动切换标签样式
  switchTab: function (e) {
    this.setData({
      currentTab: e.detail.current
    });
    this.checkCor();
  },
  // 点击标题切换当前页时改变样式
  swichNav: function (e) {
    var cur = e.target.dataset.current;
    if (this.data.currentTaB == cur) { return false; }
    else {
      this.setData({
        currentTab: cur
      })
    }
  },
  //判断当前滚动超过一屏时，设置tab标题滚动条。
  checkCor: function () {
    if (this.data.currentTab > 4) {
      this.setData({
        scrollLeft: 300
      })
    } else {
      this.setData({
        scrollLeft: 0
      })
    }
  },
  onLoad: function (options) {
    this.setData({
      cid: options.cid
    })    


    var $this = this;

    //  高度自适应
    wx.getSystemInfo({
      success: function (res) {
        var clientHeight = res.windowHeight,
          clientWidth = res.windowWidth,
          rpxR = 750 / clientWidth;
        var calc = clientHeight * rpxR - 180;
        console.log(calc)
        $this.setData({
          winHeight: calc
        });
      }
    });

    //获取类别
    this.getLists(options.cid);

  },
  footerTap: app.footerTap,
  showMask: function () {
    var that = this;
    that.setData({
      showView: (!that.data.showView)
    })
  },


  lower: function (e) {
    let data = e.target.dataset;

    if (data.islast == 0) {
      this.getLists(data.id, data.page + 1);
    }
  }
})